e
ffec
tive
ness
1
the quality of yielding the desired result
- The effectiveness of the new marketing campaign was evident in the significant increase in sales.
- Regular evaluations help measure the effectiveness of teaching methods in the classroom.
- The medication's effectiveness in treating the disease was confirmed through extensive clinical trials.
- The effectiveness of the training program was reflected in the improved performance of the employees.
- Customer feedback is crucial in assessing the effectiveness of the new product features.
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2
the capacity of a substance, treatment, or intervention to produce strong physiological, chemical, or functional effects
- The effectiveness of the drug was confirmed in clinical trials.
- Scientists assessed the effectiveness of the pesticide.
- The vaccine's effectiveness was proven over several months.
- They studied the effectiveness of the chemical solution on the reaction.
- The effectiveness of the treatment varies from patient to patient.